1. 2 x 1 = 5 x 1 = 10 x 1 =
2 x 2 = 5 x 2 = 10 x 2 =
2 x 3 = 5 x 3 = 10 x 3 =
2 x 4 = 5 x 4 = 10 x 4 =
2 x 5 = 5 x 5 = 10 x 5 =
2 x 6 = 5 x 6 = 10 x 6 =
2 x 7 = 5 x 7 = 10 x 7 =
2 x 8 = 5 x 8 = 10 x 8 =
2 x 9 = 5 x 9 = 10 x 9 =
2 x 10 = 5 x 10 = 10 x 10 =